To improve the robustness of power source configuration for stand-alone microgrid

a double layer configuration model for robust power source capacity is built considering the intermittency and volatility of wind

solar radiation and load. The outer layer is the master problem regarding power source capacity optimization

the inner layer is the subproblem regarding operational optimization including uncertainty sets of wind

solar radiation and load. The dual problem is established to decouple the subproblem and the bilinear terms in the subproblem are converted to linear terms using the big M method

iterate the master problem and subproblem alternatively until the optimal solution is obtained. The proposed method is compared with improved non-dominant sorting genetic algorithm(NSGA-Ⅱ)in the test case. The testing result shows the robust performance and solving efficiency of the proposed model is higher than usual. The rationality and effectiveness of the model is verified.